Sentence examples for primary contaminants from inspiring English sources

Nitrates -- which are naturally occurring substances but which can also be caused by leaching of fertilizer into the water supply -- are considered primary contaminants.

Oxygen and volatile organic compound probes, and multilevel samplers were used to determine changes of the primary contaminants and the associated inorganic chemistry at multiple locations and depths.

The current model of human fecal waste and wastewater treatment is primarily focused on a systematic removal of the primary contaminants of interest, carbon, nitrogen, and phosphorus.

All four models make comparable predictions for the plume centerline concentrations of the primary contaminants in the aquifer for a distance of up to about 300 m from the source.

PARS Environmental Inc. (2004) conducted a case-study cost comparison of a manufacturing site in New Jersey where the primary contaminants of concern were TCE and PCE.

The presence of the other primary contaminants alongside the p,p′-DDE pretreatment did not increase the severity of the seizure behaviors beyond the levels of p,p′-DDE alone.

Xu's team, which includes James Thomson (who first successfully derived HES cells), has now gotten rid of what is regarded as the primary contaminant: the mouse-conditioned medium.

But while pollution from the air does settle in water, it's actually pollution from land that acts as the primary contaminant for freshwater resources.

Trichloroethene is the primary contaminant of concern, and several lines of evidence indicate the presence of organic liquid in the subsurface.

The numerical model developed for this study considers the primary contaminant degradation reactions (i.e., microbially mediated redox reactions) as well as secondary and competing mineral precipitation/dissolution reactions that affect the site's hydrochemistry and/or contaminant fate.

The primary contaminant removal site was shown to be the infiltration-reducing (BC) layer, accounting for approximately 40%, 60%, and 70% of NH4+-N, CODcr and BOD5 removal, respectively.